Ambrotype of two sisters holding hands, posed against painted backdrop.

A$300 · Offered by Douglas Stewart Fine Books

[British, 1858-60]. Sixth-plate ambrotype, 80 x 70 mm; in a double elliptical brass mat, housed in the original embossed leather case with floral designs; a stunning portrait in fine condition.

• Binding: Hardcover

Found via Rare Books Intel, a search across rare-book dealers, auction houses and marketplaces worldwide.